Safety-gate for elevators



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O.P.PEELLE. SAFETY GATE FOR ELEVATORS.

No. 542,348. Patented Jul} 9,

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- 2 Sheefiw-Sheet 2. C. P. PEELLE.

7 SAFETY GATE FOR ELEVATORS. N0 542,348. Patented July 9, 1895.

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UNITED STATES PATENT OFFICE.

CHARLES R. PEELLE, OF RICHMOND, INDIANA.

LSAFETY-GATE FOR ELEVATORS.

SPECIFICATION orming part of Letters Patent No. 542,348, dated July 9, 1895.

Application filed October 17, 1894.. Serial No. 526,175- .(No m odel.)

To all whom it may concern:

Be it known that 1, CHARLES F. PEELLE, a

, citizen of the United States, residing at Richmond, in the county of Wayne and State of Indiana, have invented certain new and useful Improvements in Safety-Gates for Elevators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to that class of gates which close elevator-openin gs and are adapted to be raised and lowered.

through the successive floors without disturb ing the safety-gates in their positions closing the said openings in the floors.

My invention consists in the devices hereinafter described and claimed.

In the drawings, Figure 1 is a side elevation, with some parts in section, of one-half of an elevator-platform and the means for lowering the gate and for detaining and holding the latter in elevated position. Fig. 2 is a top plan View of a trip-weight which traverses the interior of a vertical box, showing the box in cross-section. Fig. 3 is a sectional view of part of said Vertical box and the tripweight therein. Fig. 4 is a front elevation of the gate, the suspending-cord therefor, and thevertical box, said gate being shown elevated in full lines and lowered in dotted lines.

In Fig. 1, 1) represents the center post on the side of the elevator-platform; a, the brace; AA, the elevator-platform, and B B the frame of the opening in the floor. An upright or vertical bar (1 is carried by the elevator-platform and secured in position by a horizontal brace c, which connects it to the central post I) at the upper end and is fixed to the elevatorplatform A at its lower end. The outer edge of the bar (1 is narrower at the top and bottom than at its center, making it wedge shape, as it is shown in Fig. 1, where it is shown in This wheel e revolves on a stud-pin axisf, projecting from a-horizohtal slidable bar 9, which is permitted an endwise motion in guides h h. The bar g carries an oscillating dog-arm 2', pivoted to the arm 9 at t and supported in an inclined position by a stud-pin a".

D designates a lock-bar having recesses D and O designates a trip'weight, both of which are located within the box 0 and are connected with the gate E by means of the cord j passing over suitably-arranged pulleys 7c is. The point 11 of the bar 2' is forced into a recess D in the bar'D by the movement toward the box 0 of the slidable arm g, and when so engaged with bar D the latter will be locked in its lowermost position and the gate held elevated. Obviously the bar d holds the arm 9 into the position which engages the bar '11 with the bar D until disengaged from the pulley e by the upward or downward travel of the elevator car or platform. In order to release the lock-bar D at the proper time, so as to permit the gate to descend and close the opening when the car or platform has passed, a normally-incliued pivoted lever n is provided, said lever havinga bent end min contact with the end of said slidable arm 9 and being provided with a weight n, upon its other end. While the slidable arm g is being forced toward the box 0 in the manner above described its end presses upon the bent end m of said lever and raises the weighted end of the latter into horizontal position, as shown in full lines in Fig. 1, and when the bar d has passed out of engagement with the pulley 6 upon said slidable arm 9 the weight n upon lever n causes the latter to drop into its inclined position, and during its said movement itexerts a force upon the arm g which moves the latter and its attached parts into their normal position away from said box 0, thus releasing the lock-bar D and permitting the gate E to descend by its own weight.

The vertical box 0 is placed at its lower end at the corner of the opening in the fioor and extends from floor to ceiling, and is traversed longitudinally by the lock-weight D and tripweight 0. The rope or cord j is secured to the top end of the lock-weight D, passing through the opening p of the trip-weight O, which is held from descending by projections to on the inner surface of the box 0 and is caught up by the lock-bar D in its ascent, forming an auxiliary counterbalance-weight against the weight of the safety-gate E, which is suspended at the opposite end of the rope j.

In practical operation the safety-gate is in all cases raised by the hands of the operator, its elevation being assisted by the weight of the lock-bar D and trip-weight 0 until the latter reaches its rest at w and the former reaches a point opposite the end of the slidable bar g. The lock-bar D is constructed with a series of triangular teeth on its face, forming the recesses D above described, and as the point t" of the oscillating bar t' comes in contact with a tooth the point z" is carried downward and the rear end of the bart'is elevated, as shown in dotted lines, until the lock-bar D is stopped and the point 'i rests upon the horizontal partof the tooth, which holds the lock-bar rigidly in position, and as a consequence prevents the descent of the safety-gate until the elevator-platform carrying the bar (1 is moved up or down, when, by the withdrawal of the slidable arm g, the point i is released and the safety-gate allowed to descend automatically, the result being that the safety-gate can only be raised by the hands of the operator, and never by accident, and when so raised it is imperatively closed by the elevator in passing the floor, either up or down, and as a consequence is always closed, avoiding danger from accidents.

The operating mechanism of my device is attached to a framing s s s, which is secured to the framing B, as shown at u, the sides of the elevator-platform A being cut away to show the manner of attachment. The wheel c turns on its axis as it comes in contact with the angle of the surface of the vertical bar (1, thus avoiding friction and insuring perfect action of the slidable arm g.

Having thus fully described my said improvement, what I claim as new, and desire to secure by LettersPatent, is-

1. The combination with the slidable arm. of a pivoted lever having one end engaged with said slidable arm and its other end provided with a weight, substantially as described.

2. The combination with an elevator gate and a toothed bar connected thereto, of a slidable arm, a pivoted bar thereon designed to engage said toothed bar, and a pivoted lever, having one end engaged with said slidable arm and its other end provided with a weight, substantially as described.

3. The combination with an elevator gate, and a toothed bar connected thereto, and with the elevator platform carrying a bar cl, of a slidable arm, a wheel thereon designed to be engaged by said bar d, and a pivoted bar on said arm designed to be forced into engagement with said toothed bar, substantially as described.

4. The combination with the elevator platform, a bar d carried thereby, the gate, and 'a toothed bar connected with said gate, of a slidable arm engaged by said bar 61 and forced in one direction thereby, and a pivoted arm on said bar designed to engage said toothed bar, substantially as described.

5. The combination with the gate, the rope from one end of which said gate is suspended, a movable toothed lock bar secured to the other end of said rope; a slidable arm, and a pivoted bar carried by said arm and designed to engage said toothed bar and thereby hold the gate elevated, substantially as described.

In testimony whereof I alfix my signature in presence of two witnesses.

CHARLES F. PEELLE.

Wi tn esses:

W. T. DENNIS,

CHARLES A. FRANCISCO. 

